package demo4;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Game {
    private static final String[] decor = {"♥","♠","♣","♦"};
    //获得一副牌
    public List<Poker> buyPoker() {
        List<Poker> pokers = new ArrayList<>();
        for (int i = 0; i < 4; i++) {
            for (int j = 1; j <= 13; j++) {
                Poker poker = new Poker(decor[i],j);
                pokers.add(poker);
            }
        }
        return pokers;
    }

    //打乱牌序(洗牌)
    public void washPoker(List<Poker> pokers) {
        for (int i = pokers.size() - 1; i > 0 ; i--) {
            Random random = new Random();
            int j = random.nextInt(i);
            swap(pokers,i,j);
        }
    }

    //转换两个牌的牌序
    public void swap(List<Poker> pokers,int i, int j) {
        Poker poker = pokers.get(i);
        pokers.set(i,pokers.get(j));
        pokers.set(j,poker);
    }


    //揭牌
    public List<List<Poker>> game(List<Poker> pokers) {
        List<List<Poker>> hand = new ArrayList<>();
        List<Poker> hand1 = new ArrayList<>();
        List<Poker> hand2 = new ArrayList<>();
        List<Poker> hand3 = new ArrayList<>();
        hand.add(hand1);
        hand.add(hand2);
        hand.add(hand3);

        //揭5次
        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 3; j++) {
                //删除的值会有一个返回值
                Poker removePoker = pokers.remove(0);
                hand.get(j).add(removePoker);
            }
        }
        return hand;
    }
}
